Deprecated selector in `min-ui/index.less`

In min-ui/index.less:

Starting from Atom v1.13.0, the contents of atom-text-editor elements are no longer encapsulated within a shadow DOM boundary. This means you should stop using :host and ::shadow pseudo-selectors, and prepend all your syntax selectors with syntax--. To prevent breakage with existing style sheets, Atom will automatically upgrade the following selectors:

atom-text-editor .gutter, atom-text-editor::shadow .gutter => atom-text-editor .gutter, atom-text-editor.editor .gutter
atom-text-editor .gutter.drop-shadow, atom-text-editor::shadow .gutter.drop-shadow => atom-text-editor .gutter.drop-shadow, atom-text-editor.editor .gutter.syntax--drop-shadow

Automatic translation of selectors will be removed in a few release cycles to minimize startup time. Please, make sure to upgrade the above selectors as soon as possible.

jstnjns / min-ui

Deprecated selector in `min-ui/index.less` #2